Charles b



(3.13. COOPER.

METALLIO ROOFING.

(N0 Model.)

Patented May 27, 1890.

m M N m& m w

ATTORNEY.

UNITED STATES PATENT OFFICE.

CHARLES B. COOPER, OE NEW YORK, N. Y.

METALLIC ROOFING.

SPECIFICATION forming part of Iletters Patent No. 429,015, dated May 27, 1890.

Application filed February 20, 1890- fierial No. 341,160. (No model.)

To all whom it may concern.-

Be it known that I, CHARLES B. COOPER, of New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Metallic Roofing; and I do hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form part of this specification.

This invention relates to certain improvements in metallic roofing or outside covering.

The object of the invention is to provide, as a new article of manufacture, an improved sheet-metal roofing or siding plate so constructed that adjoining plates can be locked together and form a water-proof seam, and also so constructed that the plates can be nested tightly or snugly together and packed in a small compass for transportation, thereby economizin g spaceand freight charges. These objects are accomplished by and my invention consists in certain novel features of construction and in combinations of parts more fully described hereinafter, and particularly pointed out in the claims.

Referring to the accompanying drawings, Figure l is a detail perspective of one of the roofing-blanks in shape for transportation. Figs. 2 and 3 are respectively a central longitudinal section and a lower end view. Fig. 4 is a cross-section of the blank. Figs. 5, 6, and 7 are cross-sections of the completed roofing-plate when the corrugations of the blank are bent into position to lock overlapping edges of adjoining plates together, showing the different shapes to which these corrugations can be bent.

This invention relates to that class of metal roofing wherein the plates or shingles are joined by side or edge corrugations to form a water-tight roof.

In the drawings, the reference-letter a indicates a roofing-plate blank, while the crosssections of Figs. 5, 6, and 7 show the plate when in completed condition in readiness for use in covering the roof. in one of its sides or longitudinal edges this blank has two deep vertical upwardly-extendin g corrugations c (I,

located a distance from the edge to leave the nailing-strip e. One of these vertical corrugations c is preferably deeper or higher than the other corrugations d. The opposite edge of the blank is provided with a raised corrugation f, parallel with the two other corrugations. These vertical corrugations can be readily and quickly formed in plates by cheap inexpensive machinery, and the corrugations of the blanks thus formed can be fitted snugly and tightly together, as the corrugations will all rest and fit into each other. The blanks, as shown in Figs. 1 and 4, are shipped by manufacturer to the consumer, and the consumer by a simple process and inexpensive hand-machine can change the upright vertical and fiat corrugations of the blank into wellknown locking corrugations, such as shown in Figs. 5, 6, and 7, which are necessarily of such shape and form that they will not nest into each other, and consequently require in transportation a much larger space than those that nest. The distance between the upright corrugations c d is immaterial.

These blanks may be embossed on their surface with any design fancy may suggest, provided such embossing does not interfere with the blanks fitting one into the other.

These plates or blanks at their upper ends are provided with several dams or vertical corrugations 9, extending transversely across the plate, and serve to brace and strengthen the upper overlapping end of the same, 850., as fully set forth in my former patents. At the lower overlapping end the plate is provided with a transverse curved vertical bracing corrugation h. This corrugation h is inverted-V-shaped in cross-section and is arched or highest at the middle of the plate and gradually shallower from the middle to the ends of the corrugation. A longitudinal raised corrugation i is formed down the center of the plate from the upper portion of the same to the lower edge thereof. This corrugation 11 is divided or bisected by corrugation h. This corrugation gives the plate great rigidity against longitudinal bending, and also forms a longitudinal socket or recess to fit over the seam, joining the two plates beneath.

The extreme lower edge of the plate is provided with a transverse corrugation j, extending from near corrugations c d to near the corrugationf. This corrugation dips in the center, as shown, and this corrugation and the bracing corrugation it are for the purpose of causing the lower edge of the plates to hug or press close upon underlying plates when arranged in course after the manner of laying ordinary shingles.

Having thus fully described my invention, what I claim, and desire to secure by Letters Patent, is-

1. As an article of manufacture, asheetmetal roofing-plate blank having a pair of vertical parallel longitudinal corrugations at one edge, one higher than the other and leaving a longitudinal nailing-strip at said longitudinal edge, a single vertical raised longitudinal corrugation at the opposite longitudinal edge of the plate, and vertical raised embossments between said longitudinal edges, said corrugations and embossments being straight and vertical, so that the blanks can be snugly fitted together and nested and said longitudinal edge corrugations can be 0011- verted into locking corrugations, substantially as described.

2. As a new article of manufacture, a sheetmetal roofing-plate having a transverse centrally-dipping corrugation at its lower edge,

the intermediate curved arched transverse bracing corrugation, the central longitudinal raised corrugation bisected by said bracing corrugation, the longitudinal edge-locking corrugations, and the transverse corrugations at the upper portion of the plate, substantially as described.

In testimony that I claim the foregoing as my own I affix my signature in presence of two witnesses.

CHARLES H. COOPER.

l\"itnesses:

\V. F. \VALLACE, JOHN J. HAMMOND. 

